Eaton / Cutler-Hammer GHB3050V Molded Case Circuit Breaker
- 50A
- 3 Pole
- Bolt-On
Eaton / Cutler-Hammer
GHB3050V
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GHB3050V
Quantity
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Eaton / Cutler-Hammer GHB3050V - 50A 3 Pole Molded Case Circuit Breaker
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Description
Rated 14 kAIC at 480Y/277V, this 3-pole molded case circuit breaker features a specialized 50°C calibration for high-temperature industrial settings. The GHB3050V prevents nuisance tripping in environments where standard 40°C breakers might fail, such as boiler rooms or outdoor enclosures. It mounts into Eaton Pow-R-Line 2 (PRL2), Pow-R-Line 3 (PRL3), and Series C panelboards. This G-frame unit provides fixed thermal-magnetic protection and is HACR rated for HVAC equipment.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | GHB |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC, 14kA @ 125/250VDC |
| Frame Type | GHB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Eaton Pow-R-Line 2 (PRL2) Panelboards, Eaton Pow-R-Line 3 (PRL3) Panelboards, Series C Panelboards |
| Wire Gauge | 10-1/0 AWG (Cu/Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, Federal Specification W-C-375B, NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 50C |
| Construction Features | HACR Rated, Reverse Feed, Non-Interchangeable Trip, 50C Ambient Calibration |
Product FAQs
8 answersWhat panelboards are compatible with the GHB3050V circuit breaker?
This breaker is designed for use in Eaton Pow-R-Line 2 (PRL2), Pow-R-Line 3 (PRL3), and Series C panelboards. It bolts directly to the bus.
Can the Eaton GHB3050V replace an older Westinghouse GHB breaker?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse distribution equipment lines. The GHB3050V shares the exact same physical footprint and mounting configuration as legacy Westinghouse GHB breakers.
What does the V suffix in the GHB3050V catalog number indicate?
The V indicates that the breaker is factory-calibrated for use in 50 degrees Celsius ambient temperature environments, rather than the standard 40 degrees Celsius calibration.
Is the GHB3050V suitable for direct current (DC) applications?
Yes, this thermal-magnetic breaker is rated for 125/250VDC applications with a maximum interrupting capacity of 14 kAIC.
Are the trip settings adjustable on the GHB3050V?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions cannot be adjusted in the field.
What wire sizes and materials are accepted by the lugs on the GHB3050V?
The factory-installed lugs accept 10 AWG to 1/0 AWG wire. They are rated for both copper (Cu) and aluminum (Al) conductors.
What is the recommended tightening torque for the load-side lugs?
For the standard lugs on this breaker, the required torque is 20 lb-in for 10 AWG, 40 lb-in for 8 AWG, and 45 lb-in for 6 to 1/0 AWG.
Is the GHB3050V HACR rated and suitable for reverse-feed applications?
Yes, GHB-frame breakers are HACR rated for heating, air conditioning, and refrigeration equipment. They are also suitable for reverse-feed applications.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 30 reviews.
Reviews Summary
Generated by AI from 30 most recent customer reviews
Last updated 9/20/26
Customers say these breakers function reliably and arrive quickly with proper packaging. The ordering process is straightforward, and products consistently match descriptions. Many reviews highlight fast shipping, competitive pricing, and availability. Users appreciate the condition of refurbished units and easy online ordering. One customer reported receiving an incorrect amperage breaker despite paying for expedited delivery. Another noted disappointment when duplicate orders were not consolidated to reduce freight costs. Overall, customers value the quick procurement and dependable product quality.
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Rating
30 reviews
- TGTimothy G.Verified BuyerReviewingEaton / Cutler-Hammer GHB3020 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/17/26Used model
Breaker ohm tested out fine and currently working on load test with a longer term battery charger. So far so good. Packaged very well no visible damages during shipping. Even received a follow up call from customer that I missed.
- CKChristopher K.Verified BuyerReviewingEaton / Cutler-Hammer GHB3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/16/26Great and easy support
Easy ordering process, and always helpful over support
- DMDustin M.Verified BuyerReviewingEaton / Cutler-Hammer GHB3030 - 30A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/31/26Great Price and Worked as Expected
Bought the renewed breaker and all works as expected and saved us money. Great price and availability. Thank you.
- MWMARK W.Verified BuyerReviewingEaton / Cutler-Hammer GHB1020 - 20A 1 Pole Molded Case Circuit BreakerRated 3 out of 5 stars7/21/26Good Product, but Disappointed With the Service
Good product, but I was disappointed with the service. I accidentally placed two separate orders and ended up paying freight on both. I had requested that they combine the orders, and had that been done with the freight waived, it would have saved me money.
Other than that, everything was good. I’m just disappointed that no one communicated this to me.
- AWAnthony W.Verified BuyerReviewingEaton / Cutler-Hammer GHB3080 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars4/7/26Breaker
Item came quick and as described. Simple and easy process!